See also the SettlementBatchSummary response object.

The settlement batch summary displays the total sales and credits for each batch for a particular date. The transactions can be grouped by a single custom field's values.

$today = new Datetime;
$result = $gateway->settlementBatchSummary()->generate(

if ($result->success) {
'groupByCustomField' string

A string representing a transaction's custom field that you wish to group by.

'settlementDate' required, string

A string representing the date of the settlement batch.

Validation Errors

If you call this method with incorrect arguments, you may receive validation errors.